If you have multiple wires going from the engine block to the chassis + a wire or two from the battery to the chassis, why then do you "HAVE TO" have a cable going from the battery to the engine block?
Trying to finish off my battery disconnect switch and thanks to bumping into an article online (https://www.w8ji.com/battery_wiring....unted_battery:), I'm losing my sh*t and paranoid that I'm going to cause damage to my electrical system and/or worse.
(I don't want to drill a hole in my firewall to run a cable to my block/bellhousing if I don't need to)
Under "Front Battery System" in that link I provided, he states:
"Front battery, engine block common for all high currents. High currents (over 50A) must NOT be grounded to chassis. Chassis common for all accessories.
Never ground the very heavy high-current lead to vehicle chassis with front mount batteries. Always ground the heavy lead to the block, bell housing bolt, or some other solidly-connected (no insulating gaskets) engine component."
And under "My trunk mounted battery", he goes on to say:
"Rear battery, chassis common for all high currents. All currents can be grounded to chassis.
The vehicle chassis should be the ground lead. The battery should be high-current grounded to the vehicle chassis with short direct leads. The engine block should be high-current grounded to the vehicle chassis.
The engine block is grounded to the chassis through a heavy "starter size" cable."
Like wtf? He makes out like you'll die if you don't connect a cable from the battery to the block in a front battery system, then acts like it's no big deal earthing everything to the chassis in a rear mounted battery setup.
So, is connecting a cable from the battery (kill switch, in my case) directly to the block not required and what he wrote = BS?